(19)
(11) EP 1 490 885 A2

(12)

(88) Date of publication A3:
04.12.2003

(43) Date of publication:
29.12.2004 Bulletin 2004/53

(21) Application number: 03728321.5

(22) Date of filing: 02.04.2003
(51) International Patent Classification (IPC)7: H01J 29/07
(86) International application number:
PCT/US2003/010014
(87) International publication number:
WO 2003/085687 (16.10.2003 Gazette 2003/42)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 04.04.2002 US 369920 P

(71) Applicant: Thomson Licensing S.A.
92100 Boulogne-Billancourt (FR)

(72) Inventors:
  • NOSKER, Richard, William
    Princeton, NJ 08540 (US)
  • WHITE, Allan, Eugene
    Hightstown, NJ 08520 (US)
  • HEYMAN, Philip, Michael
    Robbinsville, NJ 08691 (US)
  • GOROG, Istvan
    Lancaster, PA 17603 (US)

(74) Representative: Kohrs, Martin et al
Thomson multimedia46, quai A. Le Gallo
92648 Boulogne Cedex
92648 Boulogne Cedex (FR)

   


(54) DYNAMIC FOCUS VOLTAGE FOR A FOCUS MASK